Life Expectancy Remaining Calculator: How Many Years Do I Have Left?
Estimate how many years you may have left at your current age from the 2023 US Social Security period life table by sex, or from any life expectancy you choose, with expected age, median age, chances of reaching 80, 90 and 100, and the time left in days and weeks.
How it works
Life table: years remaining = e(x), the average remaining lifetime at exact age x from the SSA 2023 period life table (interpolated between whole ages) · expected age = x + e(x) · chance of reaching age T = l(T) ÷ l(x) · Own figure: years remaining = life expectancy − age · days ≈ years × 365.25 · weeks ≈ years × 52.18
By default the calculator uses the US Social Security Administration’s 2023 period life table (the one in the 2026 Trustees Report). For each exact age and sex it gives e(x), the average number of years still to live, and l(x), how many of 100,000 newborns are still alive at that age. Your expected age at death is your age plus e(x); it rises as you get older, because surviving to your current age removes the chance of dying younger. A 35-year-old woman, for example, has 47.3 years left on average (to about 82), while life expectancy at birth for women is 81.1. Dividing l at a target age by l at your age gives the chance of reaching it, and the age by which half of people your age have died is the median. "Average" takes the mean of the male and female figures. The second mode keeps the simple version: subtract your age from any life expectancy you enter, useful for another country. Days and weeks make the number concrete. These are population averages under today’s death rates, not a forecast for any person: health, habits and medical progress all move the real figure.
Worked example
Default: age 35, US life table, average of men and women. e(35) is 43.02 years for men and 47.34 for women, so the average is 45.18 years: about 45.2 years remaining, an expected age of about 80.2. That is roughly 16,502 days or 2,357 weeks, and 35 ÷ 80.18 = 43.7% of the expected lifespan has been lived. The chance of a 35-year-old reaching 80 is about 59.5% on this table (l(80) ÷ l(35)). With "My own figure" set to 79, the old simple method gives 79 − 35 = 44.0 years.
Frequently asked questions
How many years do I have left to live?
On the 2023 US life table, a 35-year-old has about 43 more years on average if male and 47 if female; a 50-year-old about 30 and 33; a 65-year-old about 18 and 21. These are averages for everyone that age, so your own chances depend on your health and habits.
Why is my expected age higher than the life expectancy at birth?
Life expectancy at birth averages everyone, including people who die in childhood or early adulthood. Once you have reached a given age, those early risks are behind you, so your expected age at death is higher. A 65-year-old US man is expected to reach about 83, although male life expectancy at birth is about 76.
What is a period life table?
It shows the probability of dying at each age using the death rates of a single year (here 2023) and works out how long people would live if those rates never changed. Because health tends to improve over time, people usually live a bit longer than a period table suggests.
What is the difference between average and median remaining life?
The average (life expectancy) is the mean of all possible lifetimes. The median is the age by which half of people your age will have died. For adults the median is usually two to three years higher than the average, because a minority of early deaths pulls the average down.
Can I use this for another country?
Choose "My own figure" and enter your country’s life expectancy at birth or, better, the remaining life expectancy for your age from its national statistics office. The global average at birth is roughly 73 years.
Is this a prediction of my lifespan?
No. It is an average-based estimate for perspective only. Individual longevity varies a lot with genetics, lifestyle, medicine and chance, so no calculator can tell you your actual lifespan.
Related calculators
Educational estimate only — not medical, actuarial or financial advice. Based on population averages, not your individual health.